The Texan is only 24 and may feel like he has run out of worlds to conquer if he completes the career slam on Sunday by winning the US PGA Championship

One of the most gloriously overblown lines in the history of sports broadcasting was delivered in 1984 by the peerless darts commentator Sid Waddell. Contemplating Eric Bristow’s effortless dominion over his peers, Waddell mused: “When Alexander of Macedon was 33, he cried salt tears because there were no more worlds to conquer. Bristow is only 27.”